House drain fitting



June 30, 1931. s. CAVALIER] 1,812,583

HOUSE DRAIN FITTING Filed April 9, 1930 -||ludlllllllinuunnu INVENTOR. J/z v5.9 7R0 6 -1 VA L um! BY ATTOIUVEY.

Patented June 30, 1931 r UNITED" STAT-Es SILVESTRO cevnmnnrcor scms onco, :annmors ,HOUSE nRAtnJrrrI-Ner Application filed April 9,

This invention relates: to that type of drain fittings which are placed in the basement and like floors of buildings, opening on a level with the floors, and provided with removable closure heads, sealing gaskets and orificed strainer plates, and this improvement has for its object: 7 i

To provide a structural formation and association of parts whereby the drain fix- 1o ture is fixedly and substantially secured in the expanded entry head of an ordinary drain pipe that is bedded in the usual manner in a concrete'or like floor of a building with the top surface of such expanded entry head on [1 a level with the floor, all aswill hereinafter more fully appear.

In the accompanying drawings:

Fig. 1 is a perspective view showing the drain fitting in place in the expanded entry head of a drain pipe and illustrating the relative position of the parts adapting the same to receive a concrete filling by which they are permanently connected together.

Fig. 2 is a vertical section on line 22, Fig. 3 showing the fitting and associated parts in their permanently connected condition.

Fig. 3 is a top view with parts broken away to disclose parts of underlying members.

Fig. 4 is a fragmentary side elevation of thev fitting.

Like reference numerals indicate like parts in the different views.

In this invention the main housing 1 of the drain fixture, of the detail construction her-einafter described, is circular in form and of a less diameter than the inner diameter of the expanded entry head 2 of a section of vitres ous drain pipe to which the fitting is applied.

Said drain pipe havingthe usual setting in 40 the concrete floor of a building with its opening on a level with that of such floor, while v the annular space between the housing 1 of the fitting and the entry head 20f the drain pipe is adapted to receive a'portion of concrete, the same as that of the floor of the building, to provide a permanent connection between the parts.

The height of the housing 1 of the fitting is equal to the depth of the entry head 2 of the drain pipe, and in order to attain a com- ;rs'ao. Serial 1a. 442,977. V

*Ingthis invention, the-vertical' wall' efaie entry head 2 Tisreinoved aepoints adjacent -to' the;aforesaid-lugs"3with-a viewto-provide ,passa ges "which connect the' ab eve mentioned annular space betwejen theparts with the ex- "130 "-terioridfi the entry-- V -concrete-material off-thefloor of the building may connect and bond with a concretefilling placed in said annularspace, in attaining a very substantial attachment of drain fixture 5 a in place, with the lugs 3 locatedin said passages and in an embedded condition in the concrete mass of the floor adapted to provide a. strong and efficient construction for resisting the turning stress which prevails in'-!0 the insertion and in the'removal of the coverhead 7. i a

In the detail formation of the main housing 1 of the fixture, the same is of an annular form with its inner wall formed with an an- *"7 nular flange 4: providing a bearing for an an-. nular sealing gasket 5 and an orificed grating 6 below saidv gasket, as shown. 7

In the circular cavity of the main housing 1 above the aforesaid gasket 5 and grating- 230 6, the imperforate closure head 7 of the fitting is received, and is removably secured in place by a formation of parts'as follows In the circular wall of the above described cavity in the upper part ofcthe main hous-" ing'l, a pair of L shaped slots 8 are formed in diametrically opposed relation, with the upper and overhanging portion 8 of the wall of such slot having a cam or inclined formation on its under face. a In. connection with' W such structure, the closure head 7 is provided with a pair of outwardly extending lugs 9 in diametrically opposed relation on its perimeter. The lugs 9 being adapted for entry through the open vertical portions of the slots 8, and after insertion therein, and

by a turning movement of the closure head 7, said lugs are adapted to move beneath the I overhanging walls of said slots, to ridebe neath the same and effect a forcible downward movement of the closure head against the sealing gasket 5 aforesaid.

The turning movement of the closure head 7 may be attained by a non-circular head 10 on the top of the closure head, or other like ordinary provision.

Having thus fully described my invention, what I claim as new, is

In a house drain, the combination of a. drain pipe having an expanded annular inlet head adapted for arrangement Withits top surface on a level with the floor surface, the vertical wall of said expanded inlet head being cut away at points to form passagestherethrough, a drain fixture the main housing of which is of a circular form and of a less diameter than the inner diameter of said entry head to provide an annular space for for the receptlon of a body of connectmg concrete having bonding engagement through the aforesaid wall openings with the a concrete material of the floor of the house, said main housing having lugs extending from its perimeter for bearing upon the offset bottom wall of the aforesaid inlet head. In testimony whereof I aflix my signature.

SILVESTRO CAVALIERI. 

